Variable Pitch Propellers and Their Benefits

An aircraft propellor is extremely pertinent to its ability to fly, transforming rotational energy into propulsion and thrust that drives the vehicle forward. Variable pitch propellers are a special type of propeller that allows for the change of the blade angle during flight, opening up new abilities to increase performance. In this blog, we will provide a short overview of the functionality of variable pitch propellers, as well as their benefit to the aircraft they are fitted on.

As previously stated, variable pitch propellers allow for the angle of the propeller blade to be manipulated by the pilot during various stages of flight. While the aircraft is in takeoff, climb, cruise, and beyond, the airflow around the propellers change. By allowing for the pilot to operate the angle of the propellers, pilots can ensure that the aircraft performs optimally during these various stages. Some variable pitch propellers also allow for the feathering of blades, which refers to when the chord line of the blade and the oncoming airflow are parallel to each other. By feathering, the aircraft can greatly reduce the amount of created drag, allowing for gliding and increased engine performance.

Variable pitch propellers have been around since the early 20th century, various iterations being featured on aircraft in both World War I and World War II. Until World War II, fixed pitch propellers were more common, but were quickly surpassed due to the desire for higher performance from aircraft. From pneumatic to hydraulic activation, variable pitch propellers have come in many different types, some even utilizing bearings for operation. In more recent years, lighter aircraft have mostly relied on mechanical or electrical activated propellers rather than hydraulics due to their cost and size. With variable pitch propellers, aircraft can adapt to various airspeeds, decreasing the chance of a stall while greatly improving fuel efficiency and performance.

At Veritable Aerospace, owned and operated by ASAP Semiconductor, we can help you find pitch propeller parts you need, new or obsolete. As a premier supplier of parts for the aerospace, civil aviation, and defense industries, we're always available and ready to help you find all the parts and equipment you need, 24/7x365. For a quick and competitive quote, email us at sales@veritableaerospace.com or call us at +1-714-705-4780.

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